Related by context. Frequent words. (Click for all words.) 68 HMS Vanguard 66 submarine 64 HMS Illustrious 64 HMS Astute 60 HMCS Chicoutimi 58 warship 57 HMAS 56 torpedo tubes 56 HMS Belfast 55 Faslane 55 minesweeping 55 submarines 54 naval destroyer 54 submariners 54 navy warship 54 Scapa Flow 54 Kanimbla 53 Aegis destroyer 53 HMS Ocean 53 naval 53 frigate 53 naval frigate 53 naval vessel 53 Royal Yacht Britannia 53 Trident submarine 53 HMS Ark Royal 52 vessel 52 sailors 52 RAF Tornado 52 Frigate 52 HMS Cumberland 52 Navy warship 52 crewmen aboard 52 navy 52 powered submarines 51 destroyer escort 51 RAF Coningsby 51 sinkings 51 MAIB 51 conning tower 51 ship 51 Marine Accident Investigation 51 naval warship 51 RNAS Culdrose 51 crewmen 51 ballistic missile submarine 51 powered submarine 51 Tornado GR4 50 trawler 50 frogmen 50 HMS Iron 50 HMS Cornwall 50 Nerpa 50 HMAS Sydney 50 Svitzer 49 HMAS Success 49 HMAS Kanimbla 49 Naval Dockyard 49 coastguard helicopter 49 Bonhomme Richard 49 coastguard 49 Puma helicopter 49 Coastguard helicopter 49 aircraft carrier 49 Fleet Auxiliary 49 Warship 49 RNLI lifeboats 49 Aegis radar 49 ships 49 navy frigate 49 HMS Queen Elizabeth 49 HMS Albion 49 Frigates 49 Trident submarines 49 L' Acadien II 48 dockyard 48 submariner 48 frigates 48 vessels 48 Landing Ship 48 3 Commando Brigade 48 ballistic missile submarines 48 Coastguard Agency MCA 48 unseaworthy 48 guided missile frigate 48 minesweeper 48 Trident missiles 48 HMS Gannet 48 naval vessels 48 Varyag 48 hydrographic survey 48 Akula class 48 fishing trawler 48 RNLI lifeboat 48 HMS Victory 48 Squadron RAF 48 Kongsberg Maritime 48 inflatable dinghy 48 Pong Su 48 dismasting 48 HMCS